<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        .box{
            text-align: center;
            margin: 0 auto;
            margin-top: 300px;
        }
        button{
            position: relative;
            text-transform: uppercase;
            font-size: 30px;
            border: 0;
            background-color: #fff;
            line-height: 55px;
            font-weight: bold;
            outline: none;
            padding: 10px 20px;
            box-sizing: border-box;
        }
    </style>
</head>
<body>
    <div class="box">
        <button>hover me</button>
    </div>
</body>
</html>